He still remembers the days ______ he spent with your family A.when B.where C.that D.on which

题目

He still remembers the days ______ he spent with your family A.when B.where C.that D.on which
请说明一下为什么不用A和D,

答案

spend在这里是及物动词.the days 是做后面spent的宾语的,所以所填项是which或者that. 句子还原过来就是He still remembers the days. 什么样的days呢? he spent（the days）with your family .A 主句和从句都要保证...